ORGANIC ELECTROLUMINESCENT ELEMENT

摘要

PROBLEM TO BE SOLVED: To provide an organic electroluminescent element excellent in operation stability and having a long service life. SOLUTION: The organic eletroluminescent element has one or a plurality of thin organic layers containing a light emitting layer disposed between a positive and negative electrodes. An electron transport layer provides an element containing a mixture of an electron transport material and a chemical compound forming a hole trap. COPYRIGHT: (C)2004,JPO